Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Radon Fundamentals and the Effectiveness of Coatings in Reducing Soil Gas Flow Through Block Basement Walls.
Author Ruppersberger, J. S. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher 1989
Year Published 1989
Report Number EPA/600/D-89/205;
Stock Number PB90-132689
Additional Subjects Radon ; Air pollution control ; Basements ; Protective coatings ; Walls ; Performance evaluation ; Radioactive materials ; Paints ; Fillers ; Cements ; Concrete blocks ; Soil gases ; Indoor air pollution
Library Call Number Additional Info Location Last
NTIS  PB90-132689 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 03/10/1990
Collation 10p
The paper gives results of an evaluation of six different coatings in specially designed chambers built around 1.5 sq m concrete block wall sections. Data were collected over a pressure range of 1-12 Pa with flows from < 0.01 to 50 standard liters/minute (SLPM). The six coatings were a water-based catalyzed epoxy paint, an elastomeric paint, a cementaceous block filler, a surface bonding cement, a polysulfide vinyl acrylic paint, and a latex paint. A major preliminary finding is that all six coatings proved to be highly effective (98-plus %) when enough material is carefully applied. This large variation in a small sampling of blocks is significant not only in the potential impact on coating performance, but also more significantly that specification of blocks with low air permeability for new construction substructures could greatly reduce soil gas entry, even if left uncoated.